#30DayMapChallenge
2021 reprise
Following on the 2020 Map Challenge , here are tweets, source and images for 2021. Click on images to enlarge. New: the base map is John Nelson's latest Porcelain map .
Day 1: Points
My 1st Story Map in 2012 posted in 2014 paper on same (feat. abstract-in-a-title). @
Day 2: Line
Cross section in East Anglia from story map Fenlands Challenge: Slight (.01%) slope up toward the Wash and the North Sea resulting from the drainage of the Fens caused a linear network of ditches and lodes dotted w pumps
Day 3: Polygons
Mars Jezero Crater: 1:75,000 USGS maps on latest NASA CTX 6m. resolution imagery with search gazetteer set locally, see story map.
Day 4: Hexagons
Deep Peat in East Anglia from Natural England, as one measure to assess current carbon emission vs. potential future sequestration, and help fight climate change.
Day 5: OSM challenge
What would the road infrastructure look like w sea level rise in NL? A sea level rise vulnerability map... After HOTOSM for humanitarian aid, say, SLROSM? OSM road network shown under a blended overlay of chronological sea level rise model.
Day 6: Red
From Charlie Frye's online lesson Explore future climate projections, temperature mean annual baseline, posted in Equal Earth using blended overlay atop Living Atlas world topography.
Day 7: Green
Skelwirth Fold, Cumbria using 2m DEFRA DEM in John Nelson's ice mountain hillshade style in blend mode with misting effect.
Day 8: Blue
Current flood defences as they relate to future sea level rise model in King Lynn, coastal East Anglia, from DEFRA AIMS dataset corrected (slide 7).
Day 9: Monochrome
Simple map for A5 leaflets &/or A6 inserts, depicting Environment Agency Risk of Flooding from River and Sea in Camden area of N London, used for public outreach in climate protests.
Day 10: Raster
This is Esri Living Atlas' 10 m. resolution 2020 Land Cover compared with Natural England Peatland Carbon extract for East Anglia explained in blogpost Unlocking Open Data from a legacy site.
Day 11: 3D
Temperature - Mean Annual Baseline from Day 6 smashed it into John Nelson DIY Graphic Design. The reddish hue created a purple foggy effect offshore and ruddy shading effect on land in 25x vertical exaggeration.
Day 12: Population
Effects of measured flood risk and sea level rise model for the population of East Anglia: Ordnance Survey settlement vulnerability vs. Office for National Statistics index of deprivation, bivariate maps as a swipe map.
Day 13: Natural Earth challenge
Turning Day 11 Graphic Design scene into a map, L to R we have Biodiversity Intactness from Natural History Museum data portal, global mean temperature shown already and Human Footprint 2009 from Dryad Data.
Day 14: Map with a new tool
Facebook group Remembering the Franklin Expedition had a post about a monument on Beechey Island, an overwintering camp of the doomed 1845 Franklin Expedition seeking the Northwest Passage. See blogpost for details
Day 15: Without a computer
Hand-drawn sea level rise map on custom OS map centered on villages N of Cambridge where N Sea may encroach on years shown, for a London protest to show the public what coastal inundation may look like.
Day 16: Urban / rural
Esri Model Builder exercise on USGS Global GIS DVD, shown in National Geographic style for south central Kazakhstan from rural stockyards to urban center of Chimkent.
Day 17: Land
Volcanic field near Arusha, Tanzania centered on Mt Kilimanjaro: Sunrise Hack shows in fact sunset lighting from the West with darker valleys and mist at lower elevations.
Day 18: Water
NOAA's National Centers for Environmental Information (NCEI)'s Digital Elevation Model (DEM) grid tiles form the background of this map (top legend). The tile listed in bottom legend for NW Europe was trimmed south of the Arctic Circle, and styled according to the SLR model used. A 20,000 pixel square limit on tiles resulted in roughly 60 m. resolution.
Day 19: Islands
Aaland Islands off shore Turku that are so numerous and detailed with conclaves and exclaves, they were the GIS-breakers in the early days. Shown here with GSHHS hi res vector w Day 18 NOAA DEM & Sea Level Rise
Day 20: Movement
Wind-driven ocean currents and plastics pollution in Atlantic & Pacific oceans: Spilhaus projection is a natural for ocean currents as well as the field locations, where count density was measured between 2007-2013; hot colours show plastics tend to (but not always) appear at ocean 'quiet zones' away from major currents.
Day 21: Elevation
Cumbria applying 2.5D Map workflow from John Nelson on Coastal DEM 2.1 free tier data
Day 22: Boundaries
Polar map from last year's challenge Day 14 (Climate Change: Shrinking Arctic Ice), strip out Exclusive Economic Zones & World Port Index, add OpenStreetMap base-map, extract for N of 50°N lat. and project to Alaska Polar with -45° tilt.
Day 23: GHSL Challenge
Global Human Settlement for Northstowe controversial development NW of Cambridge UK, monitoring housing probability (GHS-BUILT-S2, 2018) and housing footprint (GHSL-ESM, 2015) against Esri 2020 Land Cover map extract with OpenStreetMap detailed base-map. Various blended overlays 'bake' the layers into a screen pattern allowing to compare and contrast past built areas vs. currently probably built against submissions.
Day 24: Historic Map
Wind force & direction, decimated from CLIWOC (tall ships captains logs 1750-1855) on Rumsey 1790 base-map in Spilhaus projection. Early historic climate data until just about when modern meteorological data started being collected ~ 1880s.
Day 25: Interactive Map
East Anglia flood defenses infrastructure as Day 8: Blue. The web scene link below allows you to fly around freehand... Or follow the bookmarks along the bottom from L to R to get a guided tour of the Fenlands waterways!
Day 26: Choropleth Map
East Anglia dual measure of risk and well-being, from Office of National Statistics and Ordnance Survey data: Index of Deprivation vs. Employment Rank as bivariate polygons, where lighter is more deprived; Population vs. Sea Level Rise of affected settlements as bivariate points, where darker higher. So the lighter the colour combinations, the more vulnerable are both areas and populations.
Day 27: Heatmap
NASA FIRMS 6 MODIS Active Fire / Hotspot Data 2009-2019 (updates on ESRI live feed). Fire data confidence level ≥ 99%. UNEP WCMC Bailey Ecoregions polar domain: ice cap, tundra and subarctic divisions, minus: southern woodlands and oceanic provinces.
Day 28: The Earth is not flat
Picking up Day 11's Graphic Design, and inspired by Meredith DiMattina's Day 18 on LinkedIn, I smashed in a Hungarian legendary character - "Hári János a nixben logatta a lábait", draped his legs over the edge of the world - one of his many adventures took him to the end of the world... except that being hyperbolic that never happened!
Day 29: Null
Living Atlas accepted two blank or Null base maps - Noir Equal Earth and Spilhaus, 'noir' being a play on words w 'blanc' or blank - I used here to create a simple map with UN Countries Equal Earth (above) and Spilhaus.
Day 30: Metamapping Day
One final day's option on @tjukanov's Github is 1) collecting your entries from the challenge to a common gallery. This story map chronicles just that.
"Please Sir I want some more"
A previous challenge map by Kylie Wilson on Great Barrier Reef islands, and a recent response to a hurricane mapmaking tweet by John Nelson inspired this story (click to enlarge or get the map image) that helped correct an almost 60 yr. old memory!
Day 1: Points
My 1st Story Map in 2012 posted in 2014 paper on same (feat. abstract-in-a-title). @
Copy of the original one-pane 1st gen. story map HT @OwenGeo
Day 2: Line
Cross section in East Anglia from story map Fenlands Challenge : Slight (.01%) slope up toward the Wash and the North Sea resulting from the drainage of the Fens caused a linear network of ditches and lodes dotted w pumps
Day 3: Polygons
Mars Jezero Crater: 1:75,000 USGS maps on latest NASA CTX 6m. resolution imagery with search gazetteer set locally, see story map .
Those are bonkers stats considering Mars was 38M mi. or 60M km. away at its closest approach to Earth last October!
Day 4: Hexagons
Deep Peat in East Anglia from Natural England, as one measure to assess current carbon emission vs. potential future sequestration, and help fight climate change.
Day 5: OSM challenge
What would the road infrastructure look like w sea level rise in NL? A sea level rise vulnerability map... After HOTOSM for humanitarian aid, say, SLROSM? OSM road network shown under a blended overlay of chronological sea level rise model.
Day 6: Red
From Charlie Frye's online lesson Explore future climate projections , temperature mean annual baseline, posted in Equal Earth using blended overlay atop Living Atlas world topography.
Day 7: Green
Skelwirth Fold, Cumbria using 2m DEFRA DEM in John Nelson's ice mountain hillshade style in blend mode with misting effect .
Day 8: Blue
Current flood defences as they relate to future sea level rise model in King Lynn, coastal East Anglia, from DEFRA AIMS dataset corrected (slide 7) .
Day 9: Monochrome
Simple map for A5 leaflets &/or A6 inserts, depicting Environment Agency Risk of Flooding from River and Sea in Camden area of N London, used for public outreach in climate protests.
Day 10: Raster
This is Esri Living Atlas' 10 m. resolution 2020 Land Cover compared with Natural England Peatland Carbon extract for East Anglia explained in blogpost Unlocking Open Data from a legacy site .
Day 11: 3D
Temperature - Mean Annual Baseline from Day 6 smashed it into John Nelson DIY Graphic Design . The reddish hue created a purple foggy effect offshore and ruddy shading effect on land in 25x vertical exaggeration.
Day 12: Population
Effects of measured flood risk and sea level rise model for the population of East Anglia: Ordnance Survey settlement vulnerability vs. Office for National Statistics index of deprivation, bivariate maps as a swipe map.
Day 13: Natural Earth challenge
Turning Day 11 Graphic Design scene into a map, L to R we have Biodiversity Intactness from Natural History Museum data portal, global mean temperature shown already and Human Footprint 2009 from Dryad Data.
Day 14: Map with a new tool
Facebook group Remembering the Franklin Expedition had a post about a monument on Beechey Island, an overwintering camp of the doomed 1845 Franklin Expedition seeking the Northwest Passage. See blogpost for details
Day 15: Without a computer
Hand-drawn sea level rise map on custom OS map centered on villages N of Cambridge where N Sea may encroach on years shown, for a London protest to show the public what coastal inundation may look like.
Transferred from sea level rise model, see blog. Hand-colouring tech - a line marking the upper limit, and colour fading out below - inspired by Strata Smith .
Day 16: Urban / rural
Esri Model Builder exercise on USGS Global GIS DVD, shown in National Geographic style for south central Kazakhstan from rural stockyards to urban center of Chimkent.
Access from re-purposed installations in the southern plains, around the mountain range, to the main city of Shymkent. The main obstacle is the Precambrian massif outlined. The suitability map's hotter colours (higher cost) and other parameters used in the model are detailed in the story map.
Day 17: Land
Volcanic field near Arusha, Tanzania centered on Mt Kilimanjaro: Sunrise Hack shows in fact sunset lighting from the West with darker valleys and mist at lower elevations.
Day 18: Water
NOAA's National Centers for Environmental Information (NCEI)'s Digital Elevation Model (DEM) grid tiles form the background of this map (top legend). The tile listed in bottom legend for NW Europe was trimmed south of the Arctic Circle, and styled according to the SLR model used. A 20,000 pixel square limit on tiles resulted in roughly 60 m. resolution.
Day 19: Islands
Aaland Islands off shore Turku that are so numerous and detailed with conclaves and exclaves, they were the GIS-breakers in the early days. Shown here with GSHHS hi res vector w Day 18 NOAA DEM & Sea Level Rise
Day 20: Movement
Wind-driven ocean currents and plastics pollution in Atlantic & Pacific oceans: Spilhaus projection is a natural for ocean currents as well as the field locations, where count density was measured between 2007-2013; hot colours show plastics tend to (but not always) appear at ocean 'quiet zones' away from major currents.
Day 21: Elevation
Cumbria applying 2.5D Map workflow from John Nelson on Coastal DEM 2.1 free tier data
Day 22: Boundaries
Polar map from last year's challenge Day 14 (Climate Change: Shrinking Arctic Ice), strip out Exclusive Economic Zones & World Port Index , add OpenStreetMap base-map, extract for N of 50°N lat. and project to Alaska Polar with -45° tilt.
Tip: to create cookie-cutter 'hublot', global background erase doesn't work on polar projection... extract and re-project first!
Day 23: GHSL Challenge
Global Human Settlement for Northstowe controversial development NW of Cambridge UK, monitoring housing probability (GHS-BUILT-S2, 2018) and housing footprint (GHSL-ESM, 2015) against Esri 2020 Land Cover map extract with OpenStreetMap detailed base-map. Various blended overlays 'bake' the layers into a screen pattern allowing to compare and contrast past built areas vs. currently probably built against submissions.
Day 24: Historic Map
Wind force & direction, decimated from CLIWOC (tall ships captains logs 1750-1855) on Rumsey 1790 base-map in Spilhaus projection. Early historic climate data until just about when modern meteorological data started being collected ~ 1880s.
Day 25: Interactive Map
East Anglia flood defenses infrastructure as Day 8: Blue. The web scene link below allows you to fly around freehand... Or follow the bookmarks along the bottom from L to R to get a guided tour of the Fenlands waterways!
Day 26: Choropleth Map
East Anglia dual measure of risk and well-being, from Office of National Statistics and Ordnance Survey data: Index of Deprivation vs. Employment Rank as bivariate polygons, where lighter is more deprived; Population vs. Sea Level Rise of affected settlements as bivariate points, where darker higher. So the lighter the colour combinations, the more vulnerable are both areas and populations.
Day 27: Heatmap
NASA FIRMS 6 MODIS Active Fire / Hotspot Data 2009-2019 (updates on ESRI live feed ). Fire data confidence level ≥ 99%. UNEP WCMC Bailey Ecoregions polar domain: ice cap, tundra and subarctic divisions, minus: southern woodlands and oceanic provinces.
Day 28: The Earth is not flat
Picking up Day 11's Graphic Design, and inspired by Meredith DiMattina's Day 18 on LinkedIn , I smashed in a Hungarian legendary character - "Hári János a nixben logatta a lábait", draped his legs over the edge of the world - one of his many adventures took him to the end of the world... except that being hyperbolic that never happened!
I drew this Albers projection that smears Antarctica around the lower edge where, according to Flat Earthers the ice walls prevent oceans from spilling over. But crafty Hári János sat the opposite end where he could dangle his feet...
(Statue photo insert: Wikimedia Commons )
Day 29: Null
Living Atlas accepted two blank or Null base maps - Noir Equal Earth and Spilhaus , 'noir' being a play on words w 'blanc' or blank - I used here to create a simple map with UN Countries Equal Earth (above) and Spilhaus .
Day 30: Metamapping Day
One final day's option on @tjukanov's Github is 1) collecting your entries from the challenge to a common gallery. This story map chronicles just that.
So long and thanks for all the fish, I meant maps (apologies to Douglas Adams)
"Please Sir I want some more"
A previous challenge map by Kylie Wilson on Great Barrier Reef islands, and a recent response to a hurricane mapmaking tweet by John Nelson inspired this story (click to enlarge or get the map image) that helped correct an almost 60 yr. old memory!
Note the bonkers blended overlay on secondary features onshore, but a simple 50% transparency over main features offshore.
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